Non-Monochromatic and Conflict-Free Coloring on Tree Spaces and Planar Network Spaces
It is well known that any set of n intervals in R^1 admits a non-monochromatic coloring with two colors and a conflict-free coloring with three colors. We investigate generalizations of this result to colorings of objects in more complex 1-dimensional spaces, namely so-called tree spaces and planar network spaces.
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